BACKGROUND. Physicians who have been sued multiple times for malpractice ar
e assumed to be less competent than those who have never been sued. However
, there is a lack of data to support this assumption. Competence includes b
oth knowledge and performance. and there are theoretical reasons to suspect
that the most knowledgeable physicians may be sued the most.
METHODS. We conducted a retrospective cohort study of family physicians who
were included in the Florida section of the 1996 American Medical Associat
ion's Physician Masterfile and who practiced in Florida at any time between
1971 and 1994 (N = 3686). The main outcome was the number of malpractice c
laims per physician adjusted for time in practice. Using regression methods
, we analyzed associations between malpractice claims and measures of physi
cian knowledge.
RESULTS. Risk factors for malpractice claims included graduation from a med
ical school in the United States or Canada (incidence rate ratio [IRR] 1.8;
95% confidence interval [CI], 1.6 - 2.1), specialty board certification (I
RR 1.8; 95% CI, 1.6 - 2.1), holding the American Medical Association Physic
ian's Recognition Award (IRR 1.4, 95% CI, 1.2 - 1.7), and Alpha Omega Alpha
Honor Society membership (IRR 1.8, 95% CI, 1.1 - 3.0). Among board-certifi
ed family physicians, sued physicians who made no payments to a plaintiff h
ad higher certification examination scores than nonsued physicians (53.48 v
s 51.38, P <.01). The scores of sued physicians who made payments were simi
lar to those of nonsued physicians (51.05 vs 51.38, P =.93).
CONCLUSIONS. Among Florida family physicians, the frequency of malpractice
claims increased with evidence of greater medical knowledge.